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Langer, Stefan (2012) HIERARCHY OF PRECONDITIONING TECHNIQUES FOR THE SOLUTION OF THE NAVIER-STOKES EQUATIONS DISCRETIZED BY 2ND ORDER UNSTRUCTURED FINITE VOLUME METHODS. ECCOMAS 2012, 10. - 14. Sept. 2012, Wien, Österreich.
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Abstract
This document presents a hierarchy of preconditioning techniques embedded into a multistage Runge-Kutta method applied to approximate steady state solutions of high Reynolds number viscous flows. The method is used as smoother in an agglomerated multigrid method. Different ways are suggested to construct coarse grid levels and coarse grid equations. Finally several of the possible combinations are suggested and investigated. Numerical examples demonstrate the superiorities and inferiorities of some of these methods.
| Item URL in elib: | https://elib.dlr.de/78548/ | ||||||
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| Document Type: | Conference or Workshop Item (Speech, Paper) | ||||||
| Title: | HIERARCHY OF PRECONDITIONING TECHNIQUES FOR THE SOLUTION OF THE NAVIER-STOKES EQUATIONS DISCRETIZED BY 2ND ORDER UNSTRUCTURED FINITE VOLUME METHODS | ||||||
| Authors: |
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| Date: | September 2012 | ||||||
| Refereed publication: | No | ||||||
| Open Access: | No | ||||||
| Gold Open Access: | No | ||||||
| In SCOPUS: | No | ||||||
| In ISI Web of Science: | No | ||||||
| Status: | Published | ||||||
| Keywords: | implicit Runge-Kutta methods, Navier-Stokes equations, high Reynolds number, agglomeration multigrid | ||||||
| Event Title: | ECCOMAS 2012 | ||||||
| Event Location: | Wien, Österreich | ||||||
| Event Type: | international Conference | ||||||
| Event Dates: | 10. - 14. Sept. 2012 | ||||||
| HGF - Research field: | Aeronautics, Space and Transport | ||||||
| HGF - Program: | Aeronautics | ||||||
| HGF - Program Themes: | Aircraft Research (old) | ||||||
| DLR - Research area: | Aeronautics | ||||||
| DLR - Program: | L AR - Aircraft Research | ||||||
| DLR - Research theme (Project): | L - Simulation & Validation (old) | ||||||
| Location: | Braunschweig | ||||||
| Institutes and Institutions: | Institute of Aerodynamics and Flow Technology > C²A²S²E - Center for Computer Applications in AeroSpace Science and Engineering | ||||||
| Deposited By: | Langer, Dr.rer.nat. Stefan | ||||||
| Deposited On: | 15 Nov 2012 11:05 | ||||||
| Last Modified: | 11 Jan 2013 15:44 |
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